Just put the web-install.php into your folder and navigate with your browser to the file. This will guide you through the installation.
This can also be used to upgrade later to an new release.
You can also clone |es|f| from GIT repository.
# git clone https://github.com/syssi/es-f.git
Don't forget after this to update the submodules with
# git submodule init
# git submodule update